Deficiencies during flowering

I've just started flowering my plant and was wondering do they require more nutes during this period? I know near the end of the grow that it is expected for the plant to have deficiencies, but what about at this time period? Should I be loading them up with nutes (to a certain point obviously)

nitrogen is needed pretty much throughout the life cycle. phosphorus should be kicked up during flowering. Potassium generally should be constant throughout the whole process. So i guess I'd recommend buying some bloom nutrients that have a higher P ratio than N or K. here is a good read on the subject too.

thanks man, thats a pretty helpful read